Who created school the nightmares of innocent kids lol ☠☠☠☠☠☠​

Riddle me this: i am first in earth,second in heaven,appear two times in aweekyou can only see meonce in a year, althoughi'm in the middle of sea.what am i?

Illustrate why films are easy to understand but difficult to explain”

Name the artist that created the two pieces of artwork. explain why the two pieces are similar, the order in which they were created, and the purpose of each.